Tramway-bucket grip.



U. A. CASE.

TRAMWAY BUCKET GRIP.

APPLICATION FILED APR. 4, 1907.

Patented Nov. 17, 1908. 2 SHEETS-SHEET 1.

m; L SM lxlbbvmweo Jn/uanim C. A. CASE.

TRAMWAY BUCKET GRIP.

APPLICATION FILED APR. 4, 1907.

Patented Nqv.17, 1908.

2 SHEETS-SHEET 2.

JJ v 55 l "Ill/A! VIII/A m WW? ,Cy/: 626% W "wwmmzzb UNITED STATES PATENT OFFIOE.

CHARLES A. CASE, OF NEW YORK, N. Y., ASSIGNOR TO'GASE TUNNEL & ENGINEERING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF ARIZONA TERRITORY.

TRAMWAY-BUGKET GRIP.

T all whom it may concern:

Be it known that I, CHARLES A. CASE, a citizen of the United States, and a resident of the borough of Manhattan, in the county of New York and State of New York, have invented certain new and useful Improvements in Tramway-Bucket Grips, of which the following is a specification.

This invention relates to tramway bucket grips. Its organization comprises a gripping mechanism which when connected to an element, such as a frame, platform, bucket and the like, allows said element to be easily propelled in curved paths as well as along straight runs of track or tramway. Its construction is specifically applicable to aerial tramways, and comprises essentially a couple of grips which are pivoted to said element, and clamped to a running rope that runs in curved as well as straight directions. The grips will follow said straight and curved directions and the said elements will remain suspended in equilibrium from their overhead supports.

More specifically the invention comprises essentially a pair of grips pivoted to the frame of a trolley bucket of an aerial tramway. The grips are clamped to a running rope, and being capable of swinging to the right or left allow the said frame to permit the running rope to turn to the right or left around curves, while the bucket is maintained in equilibrium.

In the accompanying drawings, Figure 1 shows the invention with an elevation of a curved aerial tramway station, Fig. 2 represents partial sections of Fig. 1 on the lines 2, 2 and 2 2*, Fig. 3 represents a section of Fig. 2 about on the line 3, 3, Fig. 4 shows an enlarged side view of an aerial tramway trolley bucket with the invention connected thereto, Fig. 5 shows an end view of Fig. t, Fig. 6 is an enlarged portion of Fig. Fig. 7 represents an end view of Fig. 6, Fig. 8 shows a section of Fig. 6 on the line 8, S, Fig. 9 is a partial section of Fig. 6 on the line 9, 9.

Referring particularly to Figs. 1, to 3 there is represented the frame work of curved station for an aerial tramway, in which are supported curved tracks with the shoes 21. The tracks 20 connect with the track ropes 22, which latter lead over guide sheaves 23 in the station. In the framing of the station are pivoted guide Specification of Letters Patent.

Application filed April 4, 1907.

Patented Nov. 17, 1908.

Serial No. 366,304.

rollers 24 and 25 for the running rope 26 and its return 27, guard rails 62 being located over the rollers 2stand 25. On the tracks 20 are supported the trolley wheels of the bucket frames 36 of the buckets 32. From the lower ends of the latter extend the grips 37 that clamp the running rope 26. The latter rope engages with the guide rollers 24 and 25.

Referring now particularly to Figs. t to i), the trolley wheels 35 are journaled in the side plates 38, from which is suspended on a pivot 39 the frame 36. A bucket 32 is pivoted in the frame 36. Locking devices 41 are connected up between the said bucket and frame 36. To the lower ends of the frame 36 are fastened the lugs 415, which support the eye bolts -16. On pins 1L7 carried in the eye bolts et6 are pivoted the adjusting straps IS in which latter are supported pins 49, at right angles to the pins a7. The straps i8 carry the gripping yokes that have the concaved toes 51 and the flanges 52. The flanges 52 support the tee bolts 53, each of which have slots 54: for supporting the ad justing grip straps 55.- The latter straps have openings 56 for the ends 57 of the tee bolts 53.

To use the invention the trolley wh els 35 are located when in a station on the tracks 20, the running rope 26 or its return 27 pulling the trolley with its load. Vhen the trolley runs around curved tracks the adj ustable grips swing to either side and under the frame 36 which allows the said running rope to engage with the rollers 2t and 25 and still allow the buckets to swing plumb from the trolleys. The pins 47 allow the grips to swing to the right or left of the frames 36, and the pins 4L9 allow the grips to adjust themselves in planes at right angles to the adjustments secured by the pins 47. The hole 60 in the yoke 50 being somewhat larger in diameter than the pin 49 connected with adjusting strap l3, constitutes secondary adjusting means between the rope 26, 27 and the frame 36 of the bucket. The guard rails 62 prevent the frame 36 striking the rollers 24L, 25, as the bucket is passing around a curve.

Having described my invention I claim:

1. In a tramway bucket grip the combina tion of an eye bolt, an adjusting strap pivoted thereto, a gripping yoke pivoted to the adjusting strap, a bolt extending from the gripping yoke, an adjusting grip strap extending from the bolt and clamping a running rope to the gripping yoke.

2. In a tramway bucket grip the combina tion of a bolt, a pin. supported in the bolt, an adjusting strap pivoted on said pin, av pin supported in the adjusting strap at right angles to the pin supported in thebolt, a gripping yoke having concaved toes pivoted on the latter pin, flanges extending from the gripping yoke, bolts adjustably secured to said flanges, an adjusting strap supported by each of the bolts and clamping a running rope in the concaved toes of the gripping yoke.

In a tramway bucket grip the combina tion of an eye bolt, a pin supported in the eye bolt, an adjusting strap pivoted on said pin, a pin supported in the adjusting strap at right angles to the pin in the eye bolt, a gripping yoke having flanges and supported on the pin in the adjusting strap by means of an openii'ig larger in diameter than the latter pin to allow adjustment, tee bolts adjustably supported in the flanges of the gripping yoke, an adjusting strap supported on each of the tee bolts and clamping a run.- ning rope to the gripping yoke.

a. The combination of a trolley, a grip pivoted at the forward end of the trolley and a grip pivoted at the rear end of the trolley, and a running rope clamped by the grips.

The combination of a trolley, a frame extending from the trolley, a grip pivoted at the forward end of the said frame and grip pivoted at the rear end of the frame, and a running rope clamped by the grips, so that the grips can swing under the said frame when the running rope is passing around a curve.

,6. The combination of a track, a trolley supported thereon, a frame extending from the trolley, a pair of grips pivoted from the frame so as to swing under and to either side thereof, and a running rope taking straight and curved paths connected to the grips.

7. The combination of an aerial track rope, a trolley supported thereon, a frame extending from the trolley, an adjusting strap pivoted at the forward end and also at the rear end of the frame, a gripping yoke pivoted in each of said straps, a pair of tee bolts extending from each gripping yoke, an adjusting grip strap supported on each tee bolt,

| and a running rope clamped between the said grip straps and the gripping yokes.

8. The combination of a track, a trolley supported thereon, a frame pivoted 011 the trolley, an adjusting strap pivoted at the forward end of the frame, and an adjusting strap pivoted at the rear end of the frame, so that the straps can swing to either side of the frame of the trolley, a gripping yoke pivoted in each of said adjusting straps so as to swing at right angles to the direction of swinging movement of the said strap, a pair of adjusting grip straps connected with each gripping yoke to clamp a running rope.

9. The combination in an aerial tramway of a track rope, a trolley supported on said. rope, a frame pivoted from the trolley, a bucket supported in the frame, a grip pivoted to the forward end of the frame, and av grip pivoted to the rear end of the frame, a running rope clamped to the grips, which latter are capable of swinging under the frame to the right and left thereof when the running rope is passing around a curve.

10. The combination in an aerial tramway of a track rope, a trolley sup 'iorted on said rope, a frame pivoted from the trolley, a bucket supported in the frame, a grip pivoted to the forward end of the frame, and a to swing to either side of the frame, a second pivot connected up with each grip to allow it to swing at right angles to the motion obtained by swinging to the right and left, and a running rope connected with the grips.

11. The combination in an aerial tramway of a track rope, a trolley supported on said rope, a frame pivoted from the trolley, a bucket supported in the frame, a grip pivoted to the forward end of the frame, and a grip pivoted to the rear end of the frame so as to swing to either side of the frame, a second pivot connected up with each grip to allow it to swing at right angles to the motion obtained by swinging to the right and left, a running rope connected with the grips, and secondary adjusting means between the running rope and the said frame.

Signed at the borough of Manhattan in the county of New York and State of New York this 30th day of March A. D. 1907.

CHARLES A. CASE.

Witnesses M. H. CooK, MARTIN ZIMANSKY.

grip pivoted to the rear end of the frame so as 

